Added resolvers, unified package versioning and author section to fit with mono repo style

documentation/rule-processing/readme.md

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+# @efforting.tech/rule-processing
+
+Rule processing primitives
+
+- [Source code](https://gitea.efforting.tech/efforting.tech/nodejs.esm-library/src/branch/main/source/rule-processing/resolver.mjs)
+
+**TODO:** Write proper documentation for this module - currently just a sketch
+
+## Class overview
+
+<a name="clov-Abstract_Resolver"></a>
+### Abstract_Resolver
+
+Abstract base class that currently implements [`resolve()`](#f-Abstract_Resolver-resolve).
+
+<a name="clov-Chained_Resolver"></a>
+### Chained_Resolver
+
+Goes through every link in the chain and uses the first handler that was resolved.
+
+<a name="clov-Mapping_Resolver"></a>
+### Mapping_Resolver
+
+Resolves handlers by key, either derived via a key function or simply by the item itself as key.
+
+## Classes
+
+<a name="cl-Abstract_Resolver"></a>
+### Abstract_Resolver
+
+<a name="f-Abstract_Resolver-resolve"></a>
+#### function `resolve`
+```js
+function resolve(item)
+```
+Resolves an item by calling the handler returned by the concrete [`resolve_handler()`](#function-resolve_handler) function.
+